Session: Gaseous Hydrogen Embrittlement (Part I of II)
J-R curve testing of OCTG materials in Underground Hydrogen Storage Environments (C2026-00286)
Tuesday, March 17, 2026
9:00 AM - 9:30 AM Central
Location: 381 AB
Earn .5 PDH
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Sebastian Cravero, Octavio Albores, Martin Emiliano Valdez, Alfonso Izquierdo, Pedro Olivo
Hydrogen has the potential of becoming an important energy vector in the transition to a carbon free economy. A gradual increase in the use of hydrogen gas as a source of clean energy is seen necessary to achieve a positive transition while maintaining energy sufficiency and security. Underground Gas Storage (UGS) in depleted gas fields presents an opportunity for conversion to H2-UGS, but at the same time, it presents a higher degree of complexity in terms of material requirements. It is known that high pressure gaseous H2 have detrimental effects on fracture toughness of OCTG materials and its effects need to be evaluated. In addition, it still uncertain the interaction between H2 and underground environments and the effect of them on the material fracture toughness. J-resistance curve testing from Compact Specimen (CT) following ASTM E1820 is emerging as one of the most suitable tests for determination of fracture toughness of steels working in gaseous hydrogen environments. In the present study, J-R tests were performed on different OCTG grades in 200bar of pure Hydrogen and in air. To explore the possible effect of wet condition and CO2 presence, exploratory tests were performed in environments composed by H2+Brine and H2+CO2+Brine.
